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	<strong><a href="#">首页</a></strong>
	<span>&nbsp;&gt;&nbsp;</span>
	<a href="normal.html">标准图谱</a>
	<span>&nbsp;&gt;&nbsp;</span>
	<em>一元二次方程</em>
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<div class="description_info comWidth">
	<!-- 顶部部分-->
	<div class="description_top">
    	<h1 class="course-title ch" id="courseTitle" data-title="从 MVC 到 PHP 框架">
        <a href="javascript:void 0;" title="从 MVC 到 PHP 框架">从 MVC 到 PHP 框架</a></h1>
        <p id="courseDo" class="course-do">
              <a class="btn-undo" data-operation="act" data-action="focus" href="javascript: void 0;" data-gaevent="course-focus:v3.0.0.0:academy">         <span class="icon-plus"></span>关注<span class="course-do-num courseDoNum">(3)</span>     </a>       <a class="btn-undo" data-operation="act" data-action="learn" href="javascript:void 0;" data-gaevent="course-learn:v3.0.0.0:academy">         <span class="icon-ok"></span>学过<span class="course-do-num courseDoNum">(0)</span>     </a>  
        <a class="course-do-certificate" href="/career/new/review/?course_id=2506&amp;course_name=%E4%BB%8E+MVC+%E5%88%B0+PHP+%E6%A1%86%E6%9E%B6&amp;channel=career" data-gaevent="course-review:v4.0.0.0:academy">写点评
            <span class="course-do-num">(0)</span>
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        	<img width="452" height="255" src="/knowMap/frontend/web/statics/images/jisuan.png" alt="从 MVC 到 PHP 框架">
        </div>
        
        <ul class="course-info">
        	<li>图谱名称：<a href="#" target="_blank" data-gaevent="course-info-platform:v4.0.0.0:academy">
                一元二次方程
            </a></li>
        	<li>创建人：<b>fancycedar</b></li>
        	<li>图谱类型：<i>标准图谱</i></li>
            <li>图谱热度：<i>50</i></li>
       </ul>
       <div class="course-info_btn">
       		<a href="<?php echo yii\helpers\Url::to(['normal/mapinfo2'])?>" class="course-go" data-gaevent=								"course-go:v4.0.0.0:academy">
            <span class="icon-go"></span>查看图谱
            </a>
            <a href="#" target="_blank" class="course-go" data-gaevent=								"course-go:v4.0.0.0:academy">
            <span class="icon-go"></span>自定义图谱
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    	<!-- 导航部分-->
    	<ul class="tabs" id="tabs">
        <li class="active"><a href="javascript:void 0;">简介</a></li>
        <li class=""><a href="javascript:void 0;">点评<i class="tabs-num">0</i></a></li>
    	</ul>
    </div>
    
    <div class="intro-content" style="width:500px;height: 220px;padding-top:30px;margin-left:25px;">
            <p><strong>图谱名称：</strong><br>一元二次方程</p>
            <p><strong>图谱简介：</strong><br>只含有一个未知数（一元），并且未知数项的最高次数是2（二次）的整式方程叫做一元二次方程。标准形式:ax²+bx+c=0（a≠0）</p>
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